Rock Backfill and Hazard Control of Abandoned Stopes: A Case Study

Yi Ming Wang; Mingqing Huang; Ai Xiang Wu; Gao Hui Yao; Kai Jian Hu

doi:10.4028/www.scientific.net/AMM.368-370.1726

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Rock Backfill and Hazard Control of Abandoned Stopes: A Case Study
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 368-370Rock Backfill and Hazard Control of Abandoned...

Rock Backfill and Hazard Control of Abandoned Stopes: A Case Study

Abstract:

Goafs formed in mine-out areas threat the underground mines owing to possibilities of rock burst and surface subsidence. This paper aims to discuss the feasibility, design and construction of waste rock backfill in abandoned stopes. Based on goafs distribution and stabilities in the White Bull Mine, rock backfill system with a total volume of 362,000 m³ in 8 gobs was designed and carried out. The system included technologically and economically feasible stopes, conveying equipments of tramcars, rock transfer by electric rakes, haulage network and mining workings. Field effects showed that rock backfill was applicable to control potential hazards. With rock filling, goaf utilization rates ranged from 60% to 70%, which helped to control adjacent rock movement, eliminate rock burst and surface subsidence. Additionally, backfill construction reduced the lift and transportation costs of rocks by about 50%, which further lowered the land usage of surface dumping.

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Periodical:

Applied Mechanics and Materials (Volumes 368-370)

Pages:

1726-1731

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.368-370.1726

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Online since:

August 2013

Authors:

Yi Ming Wang, Mingqing Huang, Ai Xiang Wu, Gao Hui Yao, Kai Jian Hu

Keywords:

Gob Backfill, Rock Transfer, Surface Subsidence, Underground Transportation, Waste Rock

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